CAJ | 학술논문

利用土壤剖面的温度、湿度观测数据，结合气象资料初步分析了2008－2009年科尔沁沙地坨甸相间不同典型地貌下土壤冻融过程和土壤含水量分布。结果表明：科尔沁沙地沙坨地完全冻结天数为149 d ，最大冻结深度为160．3 cm ；草甸地完全冻结天数为186 d ，最大冻结深度为116．8 cm 。整个冻融过程中，浅层土壤（0～50 cm）受冻融期气温波动影响显著，土壤剖面含水量的变化发生在各时期冻深附近范围内，且主要发生在冻结锋面以下的附近土层内。草甸地的土壤温度随气温的变化比沙坨地缓和，含水率变化幅度比沙坨地大。
이용토양부면적온도、습도관측수거，결합기상자료초보분석료2008－2009년과이심사지타전상간불동전형지모하토양동융과정화토양함수량분포。결과표명：과이심사지사타지완전동결천수위149 d ，최대동결심도위160．3 cm ；초전지완전동결천수위186 d ，최대동결심도위116．8 cm 。정개동융과정중，천층토양（0～50 cm）수동융기기온파동영향현저，토양부면함수량적변화발생재각시기동심부근범위내，차주요발생재동결봉면이하적부근토층내。초전지적토양온도수기온적변화비사타지완화，함수솔변화폭도비사타지대。
The dynamics of soil moisture distribution and thawing-freezing process of different typical landforms in dunes alternated with Meadow Area in Horqin Sand(2008-2009) were analyzed with the measurement of temperature and moisture in the soil profile combined with the meteorological data .The results show that there is a completely frozen period about 149 d in sand land and its maximum frozen depth was 160 .3 cm .There is a completely frozen period about 186 d in duration of meadow land and its maximum frozen depth was 116 .8cm .During the whole of thawing-freezing process ,shallow soil (0 ~ 50 cm)significantly affected by the thaw- freezing temperature fluctuations ,the soil moisture changed around the frozen layer ,and occurred mainly in the soil layer under the frozen frontal .Soil temperature in the duration of meadow land as temperature changed was gently for that of the sand land and the moisture content variations was bigger than that of sand land .